I will also suggest good years. My last two trailers i towed for years with marathons with zero problems. My 882 trailer was 8 years old and had well over 50k miles on it when i traded it in and the tires were still the originals. The guys on the bash fishing homepage that have had problems with marathons are the same guys that cmail they dont have time to do things like check tire pressure. If you keep them properly inflated they seem to last a long time. Get them balanced too and your trailer will run really nice.
There are two tires i will suggest you steer clear of. The first is "trail america", these came OEM on my Z7 trailer and they are total 100% crap. They didnt even make it two years before they were all cracked on the sidewalls down to the cords and they wore really strange. The other is Carlisle, some guys swear by them but what i saw of them whem my father had him on his trailer i would never in a million years put them on my trailer. He had 4 complete tread seperations about 1000 miles of towing spanned across three years. His boat hardly ever moved but it sems any time it did he blew a tire. His total boat load was way less then the weight rating on the tires too, there is no reason they should have failed in the manner they did. He replaced with with marathons and has not had an issue since. His dog club also had Carlisle's come on thier box trailer and those failed too in a similar manner in the first year they had it.
